APA (7th ed.) Citation

Irwin, H. T., Wheat, J. B., & Irwin, L. F. (1968). University of Colorado investigations of paleolithic and epipaleolithic sites in the Sudan, Africa. Univ. of Utah Press.

Chicago Style (17th ed.) Citation

Irwin, Henry T., Joe Ben Wheat, and Lee F. Irwin. University of Colorado Investigations of Paleolithic and Epipaleolithic Sites in the Sudan, Africa. Salt Lake City: Univ. of Utah Press, 1968.

MLA (9th ed.) Citation

Irwin, Henry T., et al. University of Colorado Investigations of Paleolithic and Epipaleolithic Sites in the Sudan, Africa. Univ. of Utah Press, 1968.